EU LVD standard EN 60598-1 has the following: 4.14.2 The mass of the luminaire suspended by flexible cables or cords shall not exceed 5 kg per flexible cable or cord. The total nominal cross-sectional area of the conductors of flexible cables or cords suspending pendants shall be such that the stress in the conductors does not exceed 15 N/mm2. When more than one flexible cable or cord is used, the mounting instructions shall state all necessary information to prevent any overloading of any cable or cord and ensure the even distribution of the load.
For the calculation of the stress, only the conductors are considered. When the mass of the luminaire suspended by flexible cables or cords exceeds 5 kg per flexible cable or cord, the design of the luminaire or of the flexible cable or cord shall be such as to prevent any tension being applied to the conductors. EXAMPLE A cable which incorporates suitable load-carrying cores. Best regards Charlie Charlie Blackham Sulis Consultants Limited Tel: +44 (0)7946 624317 Web: https://sulisconsultants.com/ Registered in England and Wales, number 05466247 From: John McAuley <john.mcau...@cei.ie> Sent: 12 March 2025 21:07 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Maximum weight that can be suspended from an electrical box? The Irish wiring rules are based on IEC 60670-21. It states that the fixing of a luminaire shall be capable of supporting a mass of not less than 5 kg. Any heavier and the installer has to ensure that the fixing means is capable of supporting the mass of the luminaire. It also refers you to IEC 60364-5-52:20. From: John Woodgate <j...@woodjohn.uk<mailto:j...@woodjohn.uk>> Sent: Wednesday 12 March 2025 20:36 To: EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] Maximum weight that can be suspended from an electrical box? It might not be the same all over Europe. This subject may still be covered by national standards. I've never found one for UK, but I haven't searched for one. If you don't get any good replies, I know someone who may have the answer for UK. On 2025-03-12 20:05, Doug Nix wrote: Dear European colleagues, What maximum weight can be suspended from a standard 68 mm electrical box in Europe? For example: 1. In North America, outlet boxes marked “For Fixture Support” are intended to support fixtures weighing 50 lbs (23 kg) or less. 2. The Canadian Electrical Code (CEC) 2012 rule 30-302 states that a ceiling-mounted luminaire weighing 23 kg (50 lbs) or less can be supported on a ceiling outlet box attached directly to the building structure. 3. For ceiling fans in North America, the maximum load capacity is typically 35 lbs (15.6 kg). Is there a difference between boxes installed on vertical surfaces (on walls) or horizontal surfaces (ceilings)? Best regards, Doug Nix d...@ieee.org<mailto:d...@ieee.org> +1 (519) 729-5704 ________________________________ This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/<https://www.mail-archive.com/emc-pstc@listserv.ieee.org/%20> Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe)<https://ewh.ieee.org/soc/pses/list.html> List rules: https://pses.ieee.org/wp-content/uploads/2024/12/EM-PSTC-List-Rules.pdf For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net<mailto:msherma...@comcast.net> Rick Linford at: linf...@ieee.org<mailto:linf...@ieee.org> For policy questions, send mail to: Jim Bacher at: j.bac...@ieee.org<mailto:j.bac...@ieee.org> ________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1 -- OOO - Own Opinions only If something is true: * as far as we know - it's science *for certain - it's mathematics *unquestionably - it's religion [https://s-install.avcdn.net/ipm/preview/icons/icon-envelope-tick-green-avg-v1.png]<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> Virus-free.www.avg.com<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> ________________________________ This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/<https://www.mail-archive.com/emc-pstc@listserv.ieee.org/%20> Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe)<https://ewh.ieee.org/soc/pses/list.html> List rules: https://pses.ieee.org/wp-content/uploads/2024/12/EM-PSTC-List-Rules.pdf For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net<mailto:msherma...@comcast.net> Rick Linford at: linf...@ieee.org<mailto:linf...@ieee.org> For policy questions, send mail to: Jim Bacher at: j.bac...@ieee.org<mailto:j.bac...@ieee.org> ________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1 DISCLAIMER: The information contained in this e-mail may be confidential and is intended solely for the use of the named addressee. Access, copying or re-use of the e-mail or any information contained therein by any other person is not authorised. If you are not the intended recipient please notify us immediately by returning the e-mail to the originator. ________________________________ This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/<https://www.mail-archive.com/emc-pstc@listserv.ieee.org/%20> Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe)<https://ewh.ieee.org/soc/pses/list.html> List rules: https://pses.ieee.org/wp-content/uploads/2024/12/EM-PSTC-List-Rules.pdf For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net<mailto:msherma...@comcast.net> Rick Linford at: linf...@ieee.org<mailto:linf...@ieee.org> For policy questions, send mail to: Jim Bacher at: j.bac...@ieee.org<mailto:j.bac...@ieee.org> ________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1 - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to EMC-PSTC@LISTSERV.IEEE.ORG All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/emc-pstc@listserv.ieee.org/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://pses.ieee.org/wp-content/uploads/2024/12/EM-PSTC-List-Rules.pdf For help, send mail to the list administrators: Mike Sherman at: msherma...@comcast.net Rick Linford at: linf...@ieee.org For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
